Vestas V164

Vestas V164 - 8.0 refers to a developed for offshore wind farms, wind turbine type Vestas Wind Systems with a rotor diameter of 164 meters and a rated power of 8 MW. Thus (as of January 2014) this turbine the wind turbine type is the highest power. The in January 2014, built on a 133 meter high tower in the Danish wind turbine test field Østerild prototype is also the highest ever built wind turbine, the height to the blade tip at 12 o 'clock position is 220 meters. End of January 2014, the plant fed first power into the grid.

History

In March 2011, Vestas announced the construction of a new offshore wind turbine. With a rotor diameter of 164 meters, the system should have a rated power of 7 mW. In October 2012, Vestas announced that it had increased the power of 8 MW, since one of them promise a better economy. The platform had already been designed from the start for higher performance. In September 2013, Vestas announced that outsource offshore business from the core business and want to operate jointly with Mitsubishi Heavy Industries in a joint venture. The reorganization will take place in March 2014.

Technology

Core components of a wind turbine are founding structure, tower, nacelle, hub and rotor blades and Netzanabindung. Foundation and tower are site-specifically selected depending on site conditions and therefore excluded in the following. The actual ingredients are rotor blades, hub and nacelle.

The rotor blades are 80 meters long and each weigh about 35 tons. They are made fiberglass reinforced plastic. They are fixed to the hub, in which the pitch drive is also located, which changes the angle of attack of the blades and therefore the power can be controlled. Two hydraulic pitch motors are per sheet for use.

The nacelle of the V164 - 8.0 is a cuboid shape and a length of 20 meters, a height and a width of 8 meters. To allow mechanics even during adverse weather conditions, a relatively high accessibility to the system, it is equipped with a helicopter platform. The weight including hub is about 390 tons.

In the engine house is the drive train that consists of drive shaft, clutch, a compact planetary gearbox and a medium-speed running, permanent-magnet synchronous generator. To ensure that the rotor only possible torque is transmitted to the gearbox and generator, the clutch is designed in a flexible "pure -torque " type. Also in the turbine building, which consists of ten servomotors yaw control as well as the passive operating cooling system are housed.

In addition, here you can find large parts of the electrical system of the plant. In addition to the generator, the alternating voltage of 710 V produces, is at the rear of the nacelle, a rectifier place with which the AC voltage is converted to DC voltage. The DC voltage intermediate circuit is designed as, then located in the tower inverters conducted, which generate from the line frequency synchronous AC voltage for feeding into the grid. With the help of this DC link an aerodynamically desirable, variable-speed operation of the rotor is possible. Also housed in the Tower are the power transformer, which is used to feed into the medium-voltage network and can be either 33 kV to 35 kV or 66 kV and the power switch.

The plant is designed for a useful life of 25 years.

Location and income

The Vestas V164 - 8.0 is for wind class IEC locations of S with mean annual wind speeds of up to 11 m / s allowed in Class B turbulence. The income arises primarily from the wind speed achieved on the ground in combination with the wind distribution. Under site conditions are Vestas per plant an annual energy yield in the range of 30 million kWh at 8 m / s to about 45 million kWh at 11 m / s.

Use

The prototype of the V164 - 8.0 was established in January 2014 for wind turbine test field Østerild in Denmark. After the gondola had been put back in December on the tower, the rotor blades were mounted on 14 January 2014. The commissioning was announced on 28 January 2014.

In February 2014, Vestas has received an initial order for 32 wind turbines, which from 2016Vorlage: to come tomorrow / in 2 years with the expansion of offshore wind farms Burbo bank used.

802582
de